P.E.M – SAINT-NAZAIRE | Tetrarc

Saint-Nazaire / France / 2012

4
4 Love 2,699 Visits Published

EN - During his press conference presentation on the building of the new Pont de la Matte project, Olivier Richard, the Vice President of the Large Scale Public Services Commission, said “This project will completely revamp the entrance to Saint-Nazaire”.


The works which include the dismantling of the old bridge and replacing it with a more stable structure stemmed from the need to guarantee easier access to the adjacent railway station and improve traffic flow. The obstacles to be overcome were clearly evident before setting up the building sites: the Pont de la Matte is strategic to the infrastructure of the City of Saint-Nazaire and serves as the main entrance to the north of the city. Thus, on a daily basis handling 25,000 vehicles of traffic as well as the railway line below it was of prime importance and called for a coordinated network which kept any inconvenience to the traffic flow to the minimum.


The organisation of the building sites at a total cost of 5 million Euros for a limited period from 23rd April to 31st of July was achieved by completely closing off the surrounding area. This was made possible due to the new bridge designed by Tetrarc Architects, an architectural firm working together with SCE an engineering group, being constructed ex novo on an adjacent site which was started up in the middle of March and when completed was subsequently placed on the allocated supports.


The old Pont de la Matte was divided up into 15 parts and dismantled thanks to the use of two cranes. In turn, the new flyover built in 16 components was a real architectural challenge given that it consisted of individual components – such as the pavements – up to 30 metres in length which required transport using special vehicles.


The final result was a 680 tonne flyover which was 62 metres long and 24 metres wide. The dedicated lanes have eased the flow of the traffic: two bus lanes covering 6.5 metres, two car lanes covering 6 metres and 5.8 metres of bicycle and pedestrian lanes.


 


FR - Dans le cadre de ses objectifs en matière de transports et de déplacements, la Carène, Communauté d’Agglomération de la Région Nazairienne et de l’Estuaire, ainsi que la Ville de Saint Nazaire, restructurent le réseau de transports en commun et créent une ligne structurante à haut niveau de service autour de laquelle le développement urbain sera privilégié.


La ligne structurante du THNS relie les centres villes de Trignac et Montoir aux quartiers Ouest en passant par le centre de Saint Nazaire et notamment la place de la gare. Le P.E.M – Pôle d’Echange Multimodale – s’implante dans le quartier de la gare à l’intérieur d’un périmètre allant au Nord jusqu’au carrefour d’Herbin, au Sud jusqu’à l’entrée de l’avenue de la République, à l’Ouest jusqu’au boulevard Paul PERRIN et à l’EST jusqu’à l’entrée de la rue de la ville Halluard.
Ce secteur, est un secteur stratégique pour la ville de Saint Nazaire car il en constitue l’Entrée Nord avec l’arrivée de la RN 471 prolongée par l’avenue de la République. Cette entrée s’organise en matière de circulation autour d’un carrefour à feu recevant un trafic important.
La ligne structurante du THNS, à partir du PEM, se divise en deux lignes, l’une allant vers l’Est en direction de Montoir, l’autre vers le Nord en direction de Trignac. Ces deux lignes en site propre devront accéder rapidement et prioritairement au PEM tout en permettant d’assurer son fonctionnement au carrefour République.
La conception du PEM va donc devoir répondre de manière efficace à deux objectifs fonctionnels:
- Le Carrefour République, l’entrée et la sortie de ville par le Carrefour République.
- L’échange intermodal et l’accessibilité au pôle.

4 users love this project
Comments
    comment
    user
    Enlarge image

    EN - During his press conference presentation on the building of the new Pont de la Matte project, Olivier Richard, the Vice President of the Large Scale Public Services Commission, said “This project will completely revamp the entrance to Saint-Nazaire”. The works which include the dismantling of the old bridge and replacing it with a more stable structure stemmed from the need to guarantee easier access to the adjacent railway station and improve traffic flow. The obstacles to be...

    Project details
    • Year 2012
    • Work finished in 2012
    • Status Completed works
    • Type Bridges and Roads / Bridges and Walkways
    Archilovers On Instagram
    Lovers 4 users